Registration closes: Sat, Sep 17 @ 11:59PM

Race Basics

“There are basically two types of people. People who accomplish things and people who claim to have accomplished things. The first group is less crowded.” - Mark Twain


Location: Berryman Campground - Berryman, MO

Start Time: Saturday 6:00am CDT

Distance: 50 or 100 miles (2 or 4×25 mile loops. Single Track Surface)

Elevation: 2,500 feet of ascent/2,500 feet of descent per loop. 5000 for 50/10000 for 100

Time Limit: 50 mile -16 hours.  100 mile - 32 Hours *drop downs are not allowed

Aid Stations:  5 Manned including 2 drop bag locations with crew access per loop

Awards: Medals for 50 mile, Finishers Buckles, Two Tone Buckle for Sub 24 hours in 100 mile


The Mark Twain 50/100 Mile Endurance Run is in it’s 5th year. This is a 99% single track trail race held in the Mark Twain National Forest outside of Berryman, MO on the Berryman Trail located about 1.5 hours from St. Louis, MO. The Berryman Trail is a 25 mile loop that will be repeated 4 times (2x for the 50) counter clockwise. The loop starts and stops in the Berryman Campground where you and your crew/family are welcome to stay for no cost. We do our best to provide excellent aid and a great venue with generous time limits to provide both the most veteran of runners and first timers a great experience. We hope you join us in September!

*No Bib Transfers*

**No guarantee on shirts or finishers medals to registrations made after July 30th**

Mark Twain Endurance Runs are participators in the Trail Runner Trophy Series.


Local time: 6:28 PM


Meghan Mccarrick

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